| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 709,562 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,341,304 |
| Chinese Zodiac Quiz | 0 | - | 4.74 | 111,789 |
| Biggest Cities in Texas | 0 | - | 4.21 | 95,263 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,948 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,864 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,147 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,357 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,230 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,331 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,558 |
| Biggest Mediterranean Cities | 0 | - | 4.67 | 69,386 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,721 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,055 |
| Biggest Cities in Russia | 0 | - | 4.49 | 68,882 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,789 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,287 |
| Countries that Border China | 0 | - | 4.97 | 212,366 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,704 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,085 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,282 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.32 | 62,625 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,605 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,665 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.12 | 61,493 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.07 | 57,340 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 18,014 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.82 | 52,838 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,582 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,479 |
| Biggest U.S. Cities A-Z | 0 | - | 4.55 | 109,297 |
| Biggest Cities in France | 0 | - | 4.53 | 161,891 |
| Biggest Cities in Spain | 0 | - | 4.66 | 133,180 |
| Biggest Cities in Italy | 0 | - | 4.64 | 189,457 |
| Biggest Cities in California | 0 | - | 4.30 | 120,031 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,529 |
| Biggest Cities in the World Quiz | 0 | - | 4.82 | 572,632 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,920 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,229 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,366 |
| Biggest Cities in The Netherlands | 0 | - | 4.43 | 36,445 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,903 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,286 |
| Biggest Cities in Europe | 0 | - | 4.64 | 404,328 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,556 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,290 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,949 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,667 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,346 |
| Asia Capitals Quiz | 0 | - | 4.97 | 502,928 |
| Biggest Cities in China | 0 | - | 4.46 | 118,490 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,107 |
| Biggest Cities in Germany | 0 | - | 4.94 | 227,055 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,486 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 135,087 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,935 |
| Biggest Cities in Louisiana | 0 | - | 3.98 | 16,371 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,127 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,827 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,353 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,531 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,849 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,620 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,403 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,206 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,224 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,727 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,860 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,894 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,363 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 110,088 |
| Biggest Cities in India | 0 | - | 4.52 | 54,974 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,076 |
| Japanese Prefectures | 0 | - | 4.97 | 78,681 |
| China Country Quiz | 0 | - | 4.37 | 91,188 |
| Japan Country Quiz | 0 | - | 4.91 | 103,615 |
| Asia Capital to Country | 0 | - | 4.96 | 95,861 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,457 |
| Five Biggest Cities by Country | 0 | - | 4.77 | 122,633 |
| China Cities Map Quiz | 0 | - | 4.86 | 78,842 |
| Provinces of China Map Quiz | 0 | - | 4.95 | 75,390 |
| Provinces of China | 0 | - | 4.97 | 118,421 |
| South Korea Country Quiz | 0 | - | 4.54 | 62,565 |
| Hong Kong Facts | 0 | - | 4.37 | 20,843 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,297 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,032 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.53 | 58,811 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 16,000 |
| Countries Closest to Japan | 0 | - | 4.95 | 102,270 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,309 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,493 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,314 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,092 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,904 |
| Overseas Chinese Population | 0 | - | 4.57 | 35,814 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,335 |
| China A-Z | 0 | - | 4.65 | 51,747 |
| Japan A-Z | 0 | - | 4.41 | 33,180 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,739 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,386 |
| Cities of Ireland | 0 | - | 4.40 | 35,722 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,897 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,450 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,251 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,417 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,419 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,629 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 34,044 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 42,821 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,472 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,497 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 40,321 |
| Countries of Asia with an Empty Map | 0 | - | 4.99 | 185,642 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,928 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,893 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 29,907 |
| Megacities on a World Map | 0 | - | 4.97 | 199,983 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,850 |
| Asian Capitals by Map | 0 | - | 4.98 | 30,139 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,588 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 63,194 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,764 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,748 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 74,684 |
| Cities of the Pearl River Delta | 0 | - | 4.60 | 12,586 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 313,250 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,307 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,114 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,749 |
| World Capitals Closest to Bangkok | 0 | - | 4.94 | 34,400 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 435,164 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,303 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.86 | 41,314 |
| Middle East Capital Cities Quiz | 0 | - | 4.95 | 63,061 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,116 |
| Southeast Asian Cities by Map | 0 | - | 4.55 | 17,665 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.72 | 64,601 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,563 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 54,074 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,199 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 32,906 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,389 |
| Most Visited Countries by Chinese | 0 | - | 4.24 | 26,184 |
| Most-Visited Countries by Japanese | 0 | - | 4.94 | 44,913 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,526 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 49,662 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,097 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,595 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.98 | 81,254 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.86 | 42,022 |
| Chinese Geography on the Map | 0 | - | 4.53 | 18,728 |
| Most Guessed Asian Capitals | 0 | - | 4.43 | 40,934 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.72 | 62,148 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,337 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,410 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,544 |
| Flags of Countries that Border China | 0 | - | 4.91 | 69,515 |
| Closest Countries to North Korea | 0 | - | 4.94 | 94,083 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,996 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.92 | 79,795 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,911 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,607 |
| Top Asian Languages on a Map | 0 | - | 4.89 | 52,000 |
| Which City in the Middle East? | 0 | - | 4.46 | 46,073 |
| China by Picture | 0 | - | 4.55 | 45,056 |
| Countries that Visit Japan the Most | 0 | - | 4.90 | 60,823 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,214 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,472 |
| Saint Lucia Country Quiz | 0 | - | 4.57 | 13,903 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,458 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.64 | 45,965 |
| Random Asian Capital to Country | 0 | - | 4.97 | 63,230 |
| Random Asian Country to Capital | 0 | - | 4.92 | 64,684 |
| Countries that Beat China | 0 | - | 4.68 | 74,031 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 32,004 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,423 |
| Taiwan Country Quiz | 0 | - | 4.86 | 31,225 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 51,324 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.94 | 65,656 |
| Pixelated Asia Map | 0 | - | 4.88 | 53,506 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,581 |
| China Multiple Choice | 0 | - | 4.42 | 32,238 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,725 |
| Countries Closest to Taiwan | 0 | - | 4.86 | 67,582 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 45,851 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.64 | 27,573 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 42,123 |
| Random Asian Countries on a Map | 0 | - | 4.95 | 125,227 |
| Random African Capitals on a Map | 0 | - | 4.91 | 40,699 |
| Random Asian Capitals on a Map | 0 | - | 4.72 | 38,459 |
| Random European Capitals on a Map | 0 | - | 4.96 | 90,083 |
| Random U.S. State Capitals on a Map | 0 | - | 4.87 | 69,232 |
| Biggest Cities in Australia on a Map | 0 | - | 4.58 | 27,179 |
| Largest Nordic Cities on a Map | 0 | - | 4.48 | 15,622 |
| Hong Kong A-Z | 0 | - | 4.47 | 11,497 |
| Cities in Squares on a Map - North America | 0 | - | 4.26 | 16,790 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.46 | 17,125 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 44,226 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 92,472 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,656 |
